Q) two numbers are in the ratio 3:5 . If each number is increased by 10, the ratio becomes 5:7 . The smaller number is
a) 9 b)12 c)15 d)25
Ans. c)15
Q) A man travelled a distance of 61 km in 9 hours partly on foot at the rate of 4 km/hr and partly on bicycle at the rate of 9km/hr .The distance travelled on foot was
a)12 km b)16 km c) 20 km d) 24 km
Ans. b)16 km
Q) A train crosses a pole in 15 seconds and a platform 100 metres long in 25 seconds . Its length (in metres) is
a) 50 b)100 c)150 d) 200
Ans. c)150
Q) 20 men and 24 women can complete a piece of work in 20 days. If 30 men and 12 women undertake to complete the work, the work will be completed in
a)10 days b)12 days c)15 days d)16 days
Ans. a)10 days
